46 Proceedings of the Biological Society of Washington. 



inside at base of throat, the 5 subulate teeth 3 mm. long from base; corolla 

 salver-shaped, blackening on drying, the tube 13 to 15 mm. long, 2.5 mm. 

 thick, slightly widened at apex, with a pilose ring inside between the base 

 and the stamens, the 5 lobes lanceolate, acuminate, slightly oblique, 9 to 

 15 mm. long, 5 mm. wide; stamens 5, included, glabrous, the cells 5 mm. 

 long; ovary 2-celled; style 10.5 mm. long; stigma slightly clavate, undivided, 

 4 mm. long. 



Type in the herbarium of the Field Columbian Museum, No. 446,691, col- 

 lected at Maxcanu, Yucatan, March, 1916, by G. F. Gaumer & Sons (No. 

 23,260). Additional specimens collected in May are numbered Gaumer 

 23,227. 



This species is related to Randia xalapensis Mart. & Gal., but has a much 

 larger calyx and corolla. In size of flower it is intermediate between R. 

 xalapensis and R. longiloba Hemsl. 



Notoptera leptocephala Blake, sp. nov. 



Shrub 1.5 meters high; stem terete, striate, gray, tuberculate-hispid- 

 pilose with incurved hairs and puberulous; leaves opposite; petioles densely 

 tuberculate-hispid-pilose, 5 mm. long; blades ovate or elliptic-ovate, 5.5 to 

 8.5 cm. long, 2 to 3.5 cm. wide, acuminate, at base rounded or cuneate, 

 mucronulate-denticulate (teeth 9 to 12 pairs), above very harshly tubercu- 

 late-hispidulous, beneath paler, rather softly and densely hispidulous- 

 pilosulous and gland-dotted, reticulate-venose with about 10 pairs of lateral 

 veins; uppermost leaves bracteiform, 1.8 to 3.8 cm. long; panicles termin- 

 ating stem and branches, 8 cm. wide, 4 to 8 cm. long, convex; bracts 3 to 6 

 mm. long; peduncles 5 to 14 mm. long;pedicels 1 to 4 mm. long; heads discoid, 

 about 26-flowered, when young subcylindric, 7.5 mm. high, 3.5 mm. thick, in 

 age 9 tolO mm. high, G to 6.5 mm. thick; involucre about 4-seriate, 3.5 to 4.5 

 mm . high, the phy Uaries subcoriaceous, strigose, the outer ovate, obtuse, glab- 

 rate, the inner lanceolate, acute; corollas whitish, curved or reflexed, 4.5 mm. 

 long (tube 2 mm. long, ampliate at base, teeth 1.2 mm. long) ; pales narrow, 

 carinate and winged, obtuse, glabrous, erose-denticulate above; achenes 

 ovate or oblanceolate, 3.5 to 4.5 mm. long (excluding wings), blackish, 

 glabrous, narrowly winged on each side; pappus awns 2, the inner 2.2 mm. 

 long, winged to apex, the wing spinose-ciliolate, the outer 1.5 mm. long, 

 ciliolate, winged to the middle (the wing subglabrous), sometimes trifid 

 at base. 



Type in the herbarium of the Field Columbian Museum, No. 460,238, 

 cf)llected at Xnocac, Yucatan, December, 1916, by G. F. Gaumer & Sons 

 (No. 23,473). 



This species belongs to the Section Loxosiphon, and is readily distin- 

 guished from any other species of that group by its subcylindric heads. 

 The sectional character* requires a slight modification to cover the ciliate 

 wings of the achene in this species, a feature not previously known in this 

 section. According to the collectors' note, Notoptera leptocephala is re- 

 ported to be used medicinally. 



iSee Blake, Journ. Bot. 53: 225. 1915. 



